package com.liao.seckill.controller;

import com.liao.seckill.pojo.User;
import com.liao.seckill.service.GoodsService;
import com.liao.seckill.service.UserService;
import com.liao.seckill.vo.GoodsVo;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.ValueOperations;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.CookieValue;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.thymeleaf.context.WebContext;
import org.thymeleaf.spring5.view.ThymeleafViewResolver;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.util.Date;
import java.util.concurrent.TimeUnit;

/**
 * @author lzp
 * @version 1.0
 * lzpnb!
 */

@Controller
@RequestMapping("/goods")
public class GoodsController {

    @Resource
    private UserService userService;

    @Resource
    private GoodsService goodsService;

    @Resource
    private RedisTemplate redisTemplate;

    @Resource
    private ThymeleafViewResolver thymeleafViewResolver;

//    @RequestMapping("/toList")
//    public String toList(HttpSession session, Model model, @CookieValue("userTicket") String ticket) {

//    @RequestMapping("/toList")
//    public String toList(Model model, @CookieValue("userTicket") String ticket, HttpServletRequest request,HttpServletResponse response) {
//
//        if(!StringUtils.hasText(ticket)){
//            return "login";
//        }
//
//        //User user = (User)session.getAttribute(ticket);
//
//        User user = userService.getUserByCookie(ticket, request, response);
//
//        if(user == null){
//            return "login";
//        }
//
//        model.addAttribute("user",user);
//
//        return "goodsList";
//    }

//    @RequestMapping("/toList")
//    public String toList(Model model, User user) {
//        if(user == null){
//            return "login";
//        }
//        model.addAttribute("user",user);
//        model.addAttribute("goodsList",goodsService.findGoodsVo());
//
//        return "goodsList";
//    }

    @RequestMapping(value = "/toList",produces = "text/html;charset=utf-8")
    @ResponseBody
    public String toList(Model model, User user,HttpServletRequest request,HttpServletResponse response) {
        if(user == null){
            return "login";
        }


        ValueOperations valueOperations = redisTemplate.opsForValue();
        String html =(String) valueOperations.get("goodsList");

        if(StringUtils.hasText(html)) {
            return html;
        }

        model.addAttribute("user",user);
        model.addAttribute("goodsList",goodsService.findGoodsVo());

        WebContext webContext = new WebContext(request, response, request.getServletContext(), request.getLocale(), model.asMap());
        html = thymeleafViewResolver.getTemplateEngine().process("goodsList", webContext);
        if(StringUtils.hasText(html)){
            valueOperations.set("goodsList",html,60, TimeUnit.SECONDS);

        }
        return html;
    }

//    @RequestMapping("/toDetail/{goodsId}")
//    public String toDetail(Model model,User user, @PathVariable Long goodsId) {
//        if(user == null){
//            return "login";
//        }
//        model.addAttribute("user",user);
//        GoodsVo goodsVo = goodsService.findGoodsVoByGoodsId(goodsId);
//        model.addAttribute("goods",goodsVo);
//
//        Date startDate = goodsVo.getStartDate();
//        Date endDate = goodsVo.getEndDate();
//
//        Date nowDate = new Date();
//
//        int secKillStatus = 0;
//        int remainSeconds = 0;
//
//        if(nowDate.before(startDate)){
//            remainSeconds = (int)((startDate.getTime() - nowDate.getTime())/1000);
//        }else if (nowDate.after(endDate)) {
//            secKillStatus = 2;
//            remainSeconds = -1;
//        }else {
//            secKillStatus = 1;
//            remainSeconds = 0;
//        }
//
//        model.addAttribute("secKillStatus",secKillStatus);
//
//        model.addAttribute("remainSeconds",remainSeconds);
//        return "goodsDetail";
//    }

    @RequestMapping(value = "/toDetail/{goodsId}",produces = "text/html;charset=utf-8")
    @ResponseBody
    public String toDetail(Model model,User user, @PathVariable Long goodsId,HttpServletRequest request,HttpServletResponse response) {
        if(user == null){
            return "login";
        }

        ValueOperations valueOperations = redisTemplate.opsForValue();
        String html =(String) valueOperations.get("goodsDetail:" + goodsId);

        if(StringUtils.hasText(html)) {
            return html;
        }

        model.addAttribute("user",user);
        GoodsVo goodsVo = goodsService.findGoodsVoByGoodsId(goodsId);
        model.addAttribute("goods",goodsVo);

        Date startDate = goodsVo.getStartDate();
        Date endDate = goodsVo.getEndDate();

        Date nowDate = new Date();

        int secKillStatus = 0;
        int remainSeconds = 0;

        if(nowDate.before(startDate)){
            remainSeconds = (int)((startDate.getTime() - nowDate.getTime())/1000);
        }else if (nowDate.after(endDate)) {
            secKillStatus = 2;
            remainSeconds = -1;
        }else {
            secKillStatus = 1;
            remainSeconds = 0;
        }

        model.addAttribute("secKillStatus",secKillStatus);
        model.addAttribute("remainSeconds",remainSeconds);

        WebContext webContext = new WebContext(request, response, request.getServletContext(), request.getLocale(), model.asMap());
        html = thymeleafViewResolver.getTemplateEngine().process("goodsDetail", webContext);
        if(StringUtils.hasText(html)){
            valueOperations.set("goodsDetail:" + goodsId,html,60, TimeUnit.SECONDS);

        }
        return html;
    }
}
